CVE-2026-10157 Open5GS NGAP PathSwitchRequest Message ngap-handler.c improper authentication
Remote attackers can bypass authentication in Open5GS AMF via NGAP PathSwitchRequest messages, requiring a patch to secure the network core.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10157?
CVE-2026-10157 is a medium-severity authentication bypass vulnerability in Open5GS, published on 31 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was identified in Open5GS up to 2.7.6. This impacts an unknown function of the file src/amf/ngap-handler.c of the component NGAP PathSwitchRequest Message Handler. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is a188e36b1741ffc2252133f59b1bda4f14d3cb5c. It is suggested to install a patch to address this issue.
Weakness: CWE-287
Which versions are affected by CVE-2026-10157?
How do I fix CVE-2026-10157?
No fix has been published for CVE-2026-10157 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-10157 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10157 exists.
Sources
Also known as GHSA-89hg-mhjp-f99q.